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Customized: 0.37×1200 (RAL 3009)

彩涂卷
December 22, 2025
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Brief: We show the practical steps and results so you can judge suitability quickly. This video provides a detailed walkthrough of the production process for hot-dip galvanized color coated coils, from cold-rolled substrate preparation through galvanizing anti-corrosion treatment to final coating and curing. You'll see how automated processes ensure stable quality and how customized specifications like RAL 3009 color are achieved for export-grade applications.
Related Product Features:
  • Starts with cold-rolled low-carbon steel coils for superior substrate quality.
  • Features hot-dip galvanizing process forming zinc-iron alloy layer for enhanced corrosion resistance.
  • Includes surface pre-treatment with chromium-free passivation for better coating adhesion.
  • Utilizes multi-layer coating application with primer and customizable topcoat options.
  • Employs high-temperature curing to form hard, dense paint film for weather resistance.
  • Supports custom RAL/Pantone colors and special surface textures like matte or high-gloss.
  • Undergoes online inspection for coating thickness, color difference, and surface defects.
  • Packaged with export-standard moisture-proof wrapping and wooden pallets for safe sea transport.
FAQs:
  • What is the difference between hot-dip galvanizing and electro-galvanizing processes?
    Hot-dip galvanizing involves immersing steel in molten zinc at 450°C, forming a thick zinc-iron alloy layer ideal for outdoor use. Electro-galvanizing uses electrolysis to deposit a thinner, smoother zinc layer, suitable for interior applications like home appliances.
  • How is the color and finish customized on these coils?
    We support custom RAL and Pantone standard colors applied via roll coating. Special finishes like matte, high-gloss, or frosted are achieved by adjusting coating rollers or adding additives during the topcoat application stage.
  • What quality control measures are in place during production?
    Our automated production line includes online detection systems that test coating thickness, color difference, adhesion, and surface defects. Non-conforming products are rejected, and each coil is labeled with specifications for traceability.
  • How are the coils packaged for international export?
    We use export-standard packaging with inner moisture-proof paper, outer plastic film, steel strip bundling, and wooden pallets to prevent damage, moisture, and deformation during sea transportation.
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